6-K

GERDAU S.A. (GGB)

6-K 2022-11-07 For: 2022-11-07
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Added on April 11, 2026

FORM 6-K

**U.S.**SECURITIES AND EXCHANGE COMMISSION

Washington**,D.C. 20549**

REPORT OF FOREIGN PRIVATEISSUER

PURSUANT TO RULE 13a-16OR 15d-16 UNDER THE

SECURITIESEXCHANGE ACT OF 1934

Dated November 7, 2022

Commission File Number 1-14878

GERDAU S.A.

(Exact Name as Specified in its Charter)

N/A

(Translation of Registrant’s Name)

Av. Dra. Ruth Cardoso, 8,501 – 8° andar

São Paulo, São Paulo - Brazil CEP 05425-070

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F x       Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ¨     No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable.

EXHIBIT INDEX

Exhibit Description<br> of Exhibit
99.1 Notice to the Market, November 3, 2022

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused the Report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date:  November 7, 2022

GERDAU S.A.
By: /s/<br> Rafael Dorneles Japur
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Name: Rafael Dorneles<br> Japur
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Title: Executive<br> Vice President<br><br>Investor Relations Officer
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Exhibit 99.1

GERDAU S.A.

Corporate Tax ID (CNPJ/MF):

33.611.500/0001-19

Registry (NIRE): 35300520696

NOTICE TO THE MARKET

GERDAU S.A. (B3: GGBR / NYSE: GGB) following the Notice to the Market published on September 1, 2022, informs its shareholders and the market in general that, on this date, upon compliance with the applicable precedent conditions, including the approval by the competitor authorities, its subsidiary Gerdau Next S.A. concluded formalizing the strategic partnership with Randon Serviços e Participações Ltda, with the constitution of a new company that aims at providing adequate solutions to the demands of carriers and shippers, by providing leasing services of trucks, semi-trailers and other products related to the transportation and movement of cargo.

São Paulo, November 3, 2022.

Rafael Dorneles Japur

Executive Vice-President

Investor Relations Officer